Describe the sites and actions of the cardioinhibitory and cardioacceleratory centers
A) The cardioacceleratory center in the medulla oblongata activates sympathetic neurons to increase heart rate; the cardioinhibitory center in the medulla oblongata activates parasympathetic neurons that slow heart rate.
B) The cardioacceleratory center in the medulla oblongata activates parasympathetic neurons to increase heart rate; the cardioinhibitory center in the medulla oblongata activates sympathetic neurons that slow heart rate.
C) The cardioacceleratory center in the medulla oblongata activates sympathetic neurons to slow heart rate; the cardioinhibitory center in the medulla oblongata activates parasympathetic neurons that increase heart rate.
D) The cardioacceleratory center in the medulla oblongata activates parasympathetic neurons to slow heart rate; the cardioinhibitory center in the medulla oblongata activates sympathetic neurons that increase heart rate.
E) The cardioacceleratory center in the medulla oblongata activates somatic neurons to slow heart rate; the cardioinhibitory center in the medulla oblongata activates somatic neurons that increase heart rate.
Answer: A
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